Analysis and design of cylindrically conformal microstrip antennas

Download

index.pdf

Date

2011

Author

Taşoğlu, Ali Özgür

Metadata

Show full item record

Item Usage Stats

253
views

225
downloads

Cylindrically conformal microstrip antennas are investigated. Two different structures, namely proximity coupled and E-shaped microstrip antennas are analyzed and information about the design parameters is obtained by means of parametric study. With these structures, cylindrical arrays, having omnidirectional radiation in the circumferential plane of the cylinder, are designed. Proximity coupled cylindrical arrays operate in the 2.3-2.4 GHz aeronautical telemetry band with approximately 4% bandwidth. On the other hand, more than 30% bandwidth is obtained by E-Shaped cylindrical array antenna structure, which also includes the commercial telemetry band. In order to verify the simulation method, a fabricated antenna in literature is simulated and acceptable agreement with simulation and fabrication results obtained.

Subject Keywords

Microstrip antennas

URI

http://etd.lib.metu.edu.tr/upload/12613441/index.pdf
https://hdl.handle.net/11511/20579

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Design of Irregularly Shaped Patch Antennas by using the Multiport Network Model Sener, Goker; Alatan, Lale; Kuzuoğlu, Mustafa (2008-07-11) The multiport network model (MNM) is an analytical method that is used to analyze microstrip antennas. MNM is based on defining ports along the periphery of the patch and evaluating the impedance matrix corresponding to these ports by using the Greenpsilas function for the cavity under the patch. For regular rectangular, triangular and circular patches, analytical expressions for the Greenpsilas function are available. In the analysis of irregular patches, Greenpsilas functions cannot be calculated explicit...
Wideband omnidirectional and sector coverage antenna arrays for base stations Alatan, Lale (2018-01-01) By using parallel strip line fed printed dipole antennas as array elements, an omnidirectional antenna array and a wide angle sector coverage array operating in octave band are designed. A maximum deviation of ±1.25 dB from the omnidirectional pattern is achieved for the omnidirectional array, and the average gain of the antenna was measured as being 5 dB in the 1.35–2.7GHz band. For the sector coverage array, a special reflector design is utilized to maintain a half power beam width of around 115◦ with a s...
DESIGN AND SIMULATION OF CIRCULAR ARRAYS OF TRAPEZOIDAL-TOOTH LOG-PERIODIC ANTENNAS VIA GENETIC OPTIMIZATION Gurel, L.; Ergül, Özgür Salih (2008-01-01) Circular arrays of log-periodic (LP) antennas are designed and their operational properties are investigated in a sophisticated simulation environment that is based on the recent advances in computational electromagnetics. Due to the complicated structures of the trapezoidal-tooth array elements and the overall array configuration, their analytical treatments are prohibitively difficult. Therefore, the simulation results presented in this paper are essential for their analysis and design. We present the des...
An Investigation of beam scanning of arrays on cylindrical, conical and spherical surfaces Takak, Yücel; Aydın Çivi, Hatice Özlem; Department of Electrical and Electronics Engineering (2015) Recently, wide angle scanning antennas are often required especially in many radar applications. It is known that planar arrays have limited scan range without beam deformation. In this study design and production steps for wide angle scanning antenna arrays conformed on cylindrical, conical and spherical surfaces that operate at X-Band are investigated. Antenna elements used in these conformal arrays are designed using full wave electromagnetic solver tool HFSS. A MATLAB code for obtaining array patterns i...
Reconfigurable Reflectarrays: Design, Analysis and Fabrication Aydın Çivi, Hatice Özlem (2015-05-17) Reflectarray antennas combine the advantages of both reflector and phased array antennas. Therefore, they offer low-loss, low-cost solutions for the high gain, beam steering and beam shaping applications. First the current progress and future perspectives regarding the design and analysis of reflectarrays are discussed. Then, recent technological developments and techniques that are used to realize reconfigurability in reflectarrays are presented.

Citation Formats

A. Ö. Taşoğlu, “Analysis and design of cylindrically conformal microstrip antennas,” M.S. - Master of Science, Middle East Technical University, 2011.